Roberts Gorden System Control HP 208 V 3 - Manual (Page 19)

SECTION 5: T ROUBLESHOOTING
13
FIGURE 9: System Control Troubleshooting Chart
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
Troubleshoot ends.
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
Does the pump turn off
following post purge period?
No
Yes
Do the burners turn off
when the thermostat is
satisfied?
No
Yes
Rectify.
Do the burners in the
zone come on? No
Has the system been
commissioned? No
Yes
Is external wiring to the
zone OK? Yes
No
Refer to burner trouble-
shooting in either the
CORAYVAC ® or
VANTAGE ® NP
Installation, Operation and
Service Manuals.
Refer to the burner start up
instructions in either the CORAYVAC ®
or VANTAGE ® NP Installation, Operation
and Service Manuals.
Do the incorrect zone
lights or all zone
lights come on?
Yes
No
Are the zone thermostats
wired correctly?
No
Yes
Rectify.
Is external wiring to the
pressure switch OK? Yes
No
Rectify.
Rectify.
Yes
No
Is the correct contactor
selected for the
pump?
Adjust thermostat set
point to call for heat.
Does the pump
come on?
No
Yes
Does the zone light
come on?
Yes
No
No
Yes
Yes
No
Is external wiring to the
pump OK?
Fit the correct contactor.
Is the thermostat connected
to the correct terminal at the
system control.
Yes
Replace fuse with
P/N 10000212.
Is the line power
indicator on?
Check the power supply
to the system control
panel. Is it on?
Yes
Yes
Check the 250mA
fuse. Is it OK?
Yes
No No
Rectify power supply
problem.
No
No Does the pressure switch
light come on?
Refer to burner trouble-
shooting in either the
CORAYVAC ® or
VANTAGE ® NP
Installation, Operation and
Service Manuals.
Refer to burner trouble-
shooting in either the
CORAYVAC ® or
VANTAGE ® NP
Installation, Operation and
Service Manuals.
Turn off power and correct
wiring.
Yes
Contact
Roberts-Gordon LLC
at www.rg-inc.com.
If control is not working properly, disconnect power to control and check for signs
of physical damage to the front and back of the circuit board, water damage (cor-
rosion) or scorching. If damage is found, identify and rectify source of
damage. Replace circuit board (P/N 10090101), if it has permanent damage.